A:Answer I would imagine yes, but I'm an enthusiast--not a professional. If it's a DX (APS-C) camera, you're probably aware that the focal length will increase by 1.5 times. There are experts on YouTube--such as Tony and Chelsea Northrup, Matt Grainger, etc.--whom you can contact to find out if the lens is a good fit for the D90 (beyond simply working on it). They also have websites, which allow you to send them an email. (I’m unsure if it’s appropriate to include a link to their websites here, so I will err on the side of caution. N.B., I am not affiliated with them in any way. However, I do learn a lot from them and others online.) Best Buy is currently selling this 85mm at an amazing price in my area: ca. $430 (if you do find out it’s a good lens for your camera, and you’re going to keep the D90, I would get it). As another option, you can always sell your D90, add what you make from it to the $430, and spend it on a new camera at Best Buy instead (only you know what is right for you)—find that out from the experts as well before you decide.
